3fd44736db
delete obsolete device-type property, delete model property (use compatible property instead), prepend "fsl," to Freescale specific properties. Add nodes to device trees that are missing them, and fix broken property values in other trees. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
68 lines
2.7 KiB
Text
68 lines
2.7 KiB
Text
Freescale SoC SEC Security Engines
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Required properties:
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- compatible : Should contain entries for this and backward compatible
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SEC versions, high to low, e.g., "fsl,sec2.1", "fsl,sec2.0"
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- reg : Offset and length of the register set for the device
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- interrupts : the SEC's interrupt number
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- fsl,num-channels : An integer representing the number of channels
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available.
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- fsl,channel-fifo-len : An integer representing the number of
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descriptor pointers each channel fetch fifo can hold.
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- fsl,exec-units-mask : The bitmask representing what execution units
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(EUs) are available. It's a single 32-bit cell. EU information
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should be encoded following the SEC's Descriptor Header Dword
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EU_SEL0 field documentation, i.e. as follows:
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bit 0 = reserved - should be 0
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bit 1 = set if SEC has the ARC4 EU (AFEU)
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bit 2 = set if SEC has the DES/3DES EU (DEU)
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bit 3 = set if SEC has the message digest EU (MDEU/MDEU-A)
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bit 4 = set if SEC has the random number generator EU (RNG)
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bit 5 = set if SEC has the public key EU (PKEU)
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bit 6 = set if SEC has the AES EU (AESU)
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bit 7 = set if SEC has the Kasumi EU (KEU)
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bit 8 = set if SEC has the CRC EU (CRCU)
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bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B)
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remaining bits are reserved for future SEC EUs.
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- fsl,descriptor-types-mask : The bitmask representing what descriptors
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are available. It's a single 32-bit cell. Descriptor type information
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should be encoded following the SEC's Descriptor Header Dword DESC_TYPE
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field documentation, i.e. as follows:
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bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type
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bit 1 = set if SEC supports the ipsec_esp descriptor type
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bit 2 = set if SEC supports the common_nonsnoop desc. type
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bit 3 = set if SEC supports the 802.11i AES ccmp desc. type
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bit 4 = set if SEC supports the hmac_snoop_no_afeu desc. type
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bit 5 = set if SEC supports the srtp descriptor type
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bit 6 = set if SEC supports the non_hmac_snoop_no_afeu desc.type
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bit 7 = set if SEC supports the pkeu_assemble descriptor type
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bit 8 = set if SEC supports the aesu_key_expand_output desc.type
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bit 9 = set if SEC supports the pkeu_ptmul descriptor type
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bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
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bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
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..and so on and so forth.
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Optional properties:
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- interrupt-parent : the phandle for the interrupt controller that
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services interrupts for this device.
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Example:
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/* MPC8548E */
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crypto@30000 {
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compatible = "fsl,sec2.1", "fsl,sec2.0";
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reg = <0x30000 0x10000>;
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interrupts = <29 2>;
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interrupt-parent = <&mpic>;
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fsl,num-channels = <4>;
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fsl,channel-fifo-len = <24>;
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fsl,exec-units-mask = <0xfe>;
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fsl,descriptor-types-mask = <0x12b0ebf>;
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};
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